First results on light readout from the 1-ton ArDM liquid argon detector for dark matter searches
Instrumentation and Detectors
2010-12-06 v2
Abstract
ArDM-1t is the prototype for a next generation WIMP detector measuring both the scintillation light and the ionization charge from nuclear recoils in a 1-ton liquid argon target. The goal is to reach a minimum recoil energy of 30\,keVr to detect recoiling nuclei. In this paper we describe the experimental concept and present results on the light detection system, tested for the first time in ArDM on the surface at CERN. With a preliminary and incomplete set of PMTs, the light yield at zero electric field is found to be between 0.3-0.5 phe/keVee depending on the position within the detector volume, confirming our expectations based on smaller detector setups.
Cite
@article{arxiv.1009.3641,
title = {First results on light readout from the 1-ton ArDM liquid argon detector for dark matter searches},
author = {C. Amsler and A. Badertscher and V. Boccone and A. Bueno and M. C. Carmona-Benitez and W. Creus and A. Curioni and M. Daniel and E. J. Dawe and U. Degunda and A. Gendotti and L. Epprecht and S. Horikawa and L. Kaufmann and L. Knecht and M. Laffranchi and C. Lazzaro and P. K. Lightfoot and D. Lussi and J. Lozano and A. Marchionni and K. Mavrokoridis and A. Melgarejo and P. Mijakowski and G. Natterer and S. Navas-Concha and P. Otyugova and M. dePrado and P. Przewlocki and C. Regenfus and F. Resnati and M. Robinson and J. Rochet and L. Romero and E. Rondio and A. Rubbia and L. Scotto-Lavina and N. J. C. Spooner and T. Strauss and J. Ulbricht and T. Viant},
journal= {arXiv preprint arXiv:1009.3641},
year = {2010}
}
Comments
14 pages, 10 figures, v2 accepted for publication in JINST